General

  • Target

    51312f97a220112c96448b8a2a3444873627bd82f4879c4c09bf4daf8aa7beed

  • Size

    1MB

  • Sample

    230514-bz4qvscf2v

  • MD5

    261cba8b04f5c7b438362c932b73de73

  • SHA1

    81eeb8473af6c6b8707b5e64649ea026fe0bd731

  • SHA256

    51312f97a220112c96448b8a2a3444873627bd82f4879c4c09bf4daf8aa7beed

  • SHA512

    3f520e1e1ac502b4a035c94aea5fc370c81da5bcdf49d1d603e06b906305cd5f887a83a8fa5fb0028da6c59b7dad9cf4b0f8e9f30fea3e3459b409611a6603d1

  • SSDEEP

    24576:0yghWl267Ue8vp1QSH6XiY2CCkg606A3QYQzkHNs7FhkiR/9I:Dn267U5p6SuVgVDAYQzS0Fhki9

Malware Config

Extracted

Family

redline

Botnet

luka

C2

185.161.248.75:4132

Attributes
  • auth_value

    44560bcd37d6bf076da309730fdb519a

Extracted

Family

redline

Botnet

terra

C2

185.161.248.75:4132

Attributes
  • auth_value

    60df3f535f8aa4e264f78041983592d2

Extracted

Family

vjw0rm

C2

http://vj5566.duckdns.org:5566

Targets

    • Target

      51312f97a220112c96448b8a2a3444873627bd82f4879c4c09bf4daf8aa7beed

    • Size

      1MB

    • MD5

      261cba8b04f5c7b438362c932b73de73

    • SHA1

      81eeb8473af6c6b8707b5e64649ea026fe0bd731

    • SHA256

      51312f97a220112c96448b8a2a3444873627bd82f4879c4c09bf4daf8aa7beed

    • SHA512

      3f520e1e1ac502b4a035c94aea5fc370c81da5bcdf49d1d603e06b906305cd5f887a83a8fa5fb0028da6c59b7dad9cf4b0f8e9f30fea3e3459b409611a6603d1

    • SSDEEP

      24576:0yghWl267Ue8vp1QSH6XiY2CCkg606A3QYQzkHNs7FhkiR/9I:Dn267U5p6SuVgVDAYQzS0Fhki9

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • WSHRAT

      WSHRAT is a variant of Houdini worm and has vbs and js variants.

    • WSHRAT payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Windows security modification

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

2
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks